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XANTRONIX 2019-06-07 15:34:13 -05:00
parent 969bde5116
commit 0be93447f5
2 changed files with 40 additions and 14 deletions
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36
examples/cluster.c
View file

@ -1,5 +1,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
@ -9,7 +10,7 @@
#include <hexagram/window.h>
typedef struct _hexagram_cluster_state {
double rpm, rps, temp, level;
double rpm, rps, temp, fuel;
} hexagram_cluster_state;
static hexagram_cluster_state state = {
@ -328,7 +329,7 @@ static void cluster_update(struct can_frame *frame) {
}
case 0x320: {
state.level = (double)(frame->data[2]);
state.fuel = (double)(frame->data[2] & 0xf) / 16.0;
break;
}
@ -368,7 +369,22 @@ static void cluster_draw(cairo_t *cr,
width * 0.57,
height * 0.76,
height * 0.11,
0.5);
state.fuel);
}
static int usage(int argc, char **argv, const char *message, ...) {
if (message) {
va_list args;
va_start(args, message);
vfprintf(stderr, message, args);
fprintf(stderr, "\n");
va_end(args);
}
fprintf(stderr, "usage: %s canif\n", argv[0]);
return 1;
}
int main(int argc, char **argv) {
@ -389,11 +405,17 @@ int main(int argc, char **argv) {
cairo_t *fg, *bg;
if ((can_if = hexagram_can_if_open("vcan0")) == NULL)
exit(1);
if (argc != 2) {
return usage(argc, argv, "No CAN interface specified");
}
if ((window = hexagram_window_new_x11(NULL, width, height)) == NULL)
exit(1);
if ((can_if = hexagram_can_if_open(argv[1])) == NULL) {
return 1;
}
if ((window = hexagram_window_new_x11(NULL, width, height)) == NULL) {
return 1;
}
display = hexagram_window_display(window);

16
examples/view.c
View file

@ -15,6 +15,7 @@ static int usage(int argc, char **argv, const char *message, ...) {
va_start(args, message);
vfprintf(stderr, message, args);
fprintf(stderr, "\n");
va_end(args);
}
@ -57,17 +58,17 @@ int main(int argc, char **argv) {
wprintw(win, "%6.1lf RPM", rpm);
} else if (frame.can_id == 0x540) {
wmove(win, 6, 0);
wmove(win, 7, 0);
if ((frame.data[7] & 0xc) == 0xc) {
uint8_t gear = ((frame.data[7] & 0xf0) >> 4) - 2;
wprintw(win, "1 2 3 4 5 6");
wmove(win, 7, 0);
wmove(win, 8, 0);
wprintw(win, " ");
wmove(win, 7, gear * 2);
wmove(win, 8, gear * 2);
wprintw(win, "_");
} else {
@ -75,10 +76,10 @@ int main(int argc, char **argv) {
wprintw(win, "P R N D S ");
wmove(win, 7, 0);
wmove(win, 8, 0);
wprintw(win, " ");
wmove(win, 7, pos * 2);
wmove(win, 8, pos * 2);
wprintw(win, "_");
}
@ -104,8 +105,11 @@ int main(int argc, char **argv) {
wmove(win, 3, 0);
wprintw(win, "%6.1lf °C ambient", temp);
} else if (frame.can_id == 0x4a0) {
} else if (frame.can_id == 0x320) {
double fuel = (double)(frame.data[2] & 0xf) / 16.0;
wmove(win, 5, 0);
wprintw(win, "%5.0lf%% Fuel", fuel * 100.0);
}
if (((now.tv_sec * 1000000) + now.tv_usec) - ((last.tv_sec * 1000000) + last.tv_usec) > 100000) {